Home / 14,527.40-21,740.70-8,688.20

Finding the Fourth Proportional to 14,527.40, 21,740.70 and 8,688.20

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Solution

The fourth proportional to 14,527.40, 21,740.70 and 8,688.20 is: 13,002.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,527.40 : 21,740.70 = 8,688.20 : x
  2. Step 2: Convert to fraction form
    14,527.40/21,740.70 = 8,688.20/x
  3. Step 3: Cross multiply
    14,527.40x = 21,740.70 × 8,688.20
  4. Step 4: Simplify right side
    14,527.40x = 188,887,549.74
  5. Step 5: Solve for x
    x = 188,887,549.74/14,527.40
  6. Step 6: Final answer
    x = 13,002.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.