Home / 14,312.18-19,750.10-7,938.27

Finding the Fourth Proportional to 14,312.18, 19,750.10 and 7,938.27

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Solution

The fourth proportional to 14,312.18, 19,750.10 and 7,938.27 is: 10,954.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,312.18 : 19,750.10 = 7,938.27 : x
  2. Step 2: Convert to fraction form
    14,312.18/19,750.10 = 7,938.27/x
  3. Step 3: Cross multiply
    14,312.18x = 19,750.10 × 7,938.27
  4. Step 4: Simplify right side
    14,312.18x = 156,781,586.64
  5. Step 5: Solve for x
    x = 156,781,586.64/14,312.18
  6. Step 6: Final answer
    x = 10,954.41

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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.