Home / 8,931.41-12,315.75-7,530.53

Finding the Fourth Proportional to 8,931.41, 12,315.75 and 7,530.53

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Solution

The fourth proportional to 8,931.41, 12,315.75 and 7,530.53 is: 10,384.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,931.41 : 12,315.75 = 7,530.53 : x
  2. Step 2: Convert to fraction form
    8,931.41/12,315.75 = 7,530.53/x
  3. Step 3: Cross multiply
    8,931.41x = 12,315.75 × 7,530.53
  4. Step 4: Simplify right side
    8,931.41x = 92,744,155.64
  5. Step 5: Solve for x
    x = 92,744,155.64/8,931.41
  6. Step 6: Final answer
    x = 10,384.04

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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.