Home / 13,342.95-18,417.14-7,681.69

Finding the Fourth Proportional to 13,342.95, 18,417.14 and 7,681.69

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Solution

The fourth proportional to 13,342.95, 18,417.14 and 7,681.69 is: 10,602.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,342.95 : 18,417.14 = 7,681.69 : x
  2. Step 2: Convert to fraction form
    13,342.95/18,417.14 = 7,681.69/x
  3. Step 3: Cross multiply
    13,342.95x = 18,417.14 × 7,681.69
  4. Step 4: Simplify right side
    13,342.95x = 141,474,760.17
  5. Step 5: Solve for x
    x = 141,474,760.17/13,342.95
  6. Step 6: Final answer
    x = 10,602.96

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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.