Home / 12,931.76-19,407.28-5,035.52

Finding the Fourth Proportional to 12,931.76, 19,407.28 and 5,035.52

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Solution

The fourth proportional to 12,931.76, 19,407.28 and 5,035.52 is: 7,557.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,931.76 : 19,407.28 = 5,035.52 : x
  2. Step 2: Convert to fraction form
    12,931.76/19,407.28 = 5,035.52/x
  3. Step 3: Cross multiply
    12,931.76x = 19,407.28 × 5,035.52
  4. Step 4: Simplify right side
    12,931.76x = 97,725,746.59
  5. Step 5: Solve for x
    x = 97,725,746.59/12,931.76
  6. Step 6: Final answer
    x = 7,557.03

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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.