Home / 15,030.20-20,746.14-9,724.88

Finding the Fourth Proportional to 15,030.20, 20,746.14 and 9,724.88

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Solution

The fourth proportional to 15,030.20, 20,746.14 and 9,724.88 is: 13,423.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,030.20 : 20,746.14 = 9,724.88 : x
  2. Step 2: Convert to fraction form
    15,030.20/20,746.14 = 9,724.88/x
  3. Step 3: Cross multiply
    15,030.20x = 20,746.14 × 9,724.88
  4. Step 4: Simplify right side
    15,030.20x = 201,753,721.96
  5. Step 5: Solve for x
    x = 201,753,721.96/15,030.20
  6. Step 6: Final answer
    x = 13,423.22

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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.