Home / 13,345.66-18,417.72-7,681.27

Finding the Fourth Proportional to 13,345.66, 18,417.72 and 7,681.27

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Solution

The fourth proportional to 13,345.66, 18,417.72 and 7,681.27 is: 10,600.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,345.66 : 18,417.72 = 7,681.27 : x
  2. Step 2: Convert to fraction form
    13,345.66/18,417.72 = 7,681.27/x
  3. Step 3: Cross multiply
    13,345.66x = 18,417.72 × 7,681.27
  4. Step 4: Simplify right side
    13,345.66x = 141,471,480.10
  5. Step 5: Solve for x
    x = 141,471,480.10/13,345.66
  6. Step 6: Final answer
    x = 10,600.56

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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.