Home / 14,970.40-22,423.20-9,721.60

Finding the Fourth Proportional to 14,970.40, 22,423.20 and 9,721.60

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Solution

The fourth proportional to 14,970.40, 22,423.20 and 9,721.60 is: 14,561.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,970.40 : 22,423.20 = 9,721.60 : x
  2. Step 2: Convert to fraction form
    14,970.40/22,423.20 = 9,721.60/x
  3. Step 3: Cross multiply
    14,970.40x = 22,423.20 × 9,721.60
  4. Step 4: Simplify right side
    14,970.40x = 217,989,381.12
  5. Step 5: Solve for x
    x = 217,989,381.12/14,970.40
  6. Step 6: Final answer
    x = 14,561.36

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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.