Home / 15,386,376.60-21,226,527.90-9,271,330.20

Finding the Fourth Proportional to 15,386,376.60, 21,226,527.90 and 9,271,330.20

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Solution

The fourth proportional to 15,386,376.60, 21,226,527.90 and 9,271,330.20 is: 12,790,415.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,386,376.60 : 21,226,527.90 = 9,271,330.20 : x
  2. Step 2: Convert to fraction form
    15,386,376.60/21,226,527.90 = 9,271,330.20/x
  3. Step 3: Cross multiply
    15,386,376.60x = 21,226,527.90 × 9,271,330.20
  4. Step 4: Simplify right side
    15,386,376.60x = 196,798,149,160,412.56
  5. Step 5: Solve for x
    x = 196,798,149,160,412.56/15,386,376.60
  6. Step 6: Final answer
    x = 12,790,415.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.