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Finding the Fourth Proportional to 8,737.10, 13,038.52 and 7,802.90

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Solution

The fourth proportional to 8,737.10, 13,038.52 and 7,802.90 is: 11,644.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,737.10 : 13,038.52 = 7,802.90 : x
  2. Step 2: Convert to fraction form
    8,737.10/13,038.52 = 7,802.90/x
  3. Step 3: Cross multiply
    8,737.10x = 13,038.52 × 7,802.90
  4. Step 4: Simplify right side
    8,737.10x = 101,738,267.71
  5. Step 5: Solve for x
    x = 101,738,267.71/8,737.10
  6. Step 6: Final answer
    x = 11,644.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.