Home / 12,153.17-16,773.55-7,117.10

Finding the Fourth Proportional to 12,153.17, 16,773.55 and 7,117.10

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Solution

The fourth proportional to 12,153.17, 16,773.55 and 7,117.10 is: 9,822.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,153.17 : 16,773.55 = 7,117.10 : x
  2. Step 2: Convert to fraction form
    12,153.17/16,773.55 = 7,117.10/x
  3. Step 3: Cross multiply
    12,153.17x = 16,773.55 × 7,117.10
  4. Step 4: Simplify right side
    12,153.17x = 119,378,931.04
  5. Step 5: Solve for x
    x = 119,378,931.04/12,153.17
  6. Step 6: Final answer
    x = 9,822.86

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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.