Home / 9,345.38-12,897.02-5,153.63

Finding the Fourth Proportional to 9,345.38, 12,897.02 and 5,153.63

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Solution

The fourth proportional to 9,345.38, 12,897.02 and 5,153.63 is: 7,112.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,345.38 : 12,897.02 = 5,153.63 : x
  2. Step 2: Convert to fraction form
    9,345.38/12,897.02 = 5,153.63/x
  3. Step 3: Cross multiply
    9,345.38x = 12,897.02 × 5,153.63
  4. Step 4: Simplify right side
    9,345.38x = 66,466,417.58
  5. Step 5: Solve for x
    x = 66,466,417.58/9,345.38
  6. Step 6: Final answer
    x = 7,112.23

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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.