Home / 15,737.55-21,715.27-9,364.34

Finding the Fourth Proportional to 15,737.55, 21,715.27 and 9,364.34

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Solution

The fourth proportional to 15,737.55, 21,715.27 and 9,364.34 is: 12,921.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,737.55 : 21,715.27 = 9,364.34 : x
  2. Step 2: Convert to fraction form
    15,737.55/21,715.27 = 9,364.34/x
  3. Step 3: Cross multiply
    15,737.55x = 21,715.27 × 9,364.34
  4. Step 4: Simplify right side
    15,737.55x = 203,349,171.47
  5. Step 5: Solve for x
    x = 203,349,171.47/15,737.55
  6. Step 6: Final answer
    x = 12,921.27

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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.