Home / 8,916.02-12,306.18-5,931.98

Finding the Fourth Proportional to 8,916.02, 12,306.18 and 5,931.98

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Solution

The fourth proportional to 8,916.02, 12,306.18 and 5,931.98 is: 8,187.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,916.02 : 12,306.18 = 5,931.98 : x
  2. Step 2: Convert to fraction form
    8,916.02/12,306.18 = 5,931.98/x
  3. Step 3: Cross multiply
    8,916.02x = 12,306.18 × 5,931.98
  4. Step 4: Simplify right side
    8,916.02x = 73,000,013.64
  5. Step 5: Solve for x
    x = 73,000,013.64/8,916.02
  6. Step 6: Final answer
    x = 8,187.51

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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.