Home / 13,088.68-19,706.98-11,538.60

Finding the Fourth Proportional to 13,088.68, 19,706.98 and 11,538.60

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Solution

The fourth proportional to 13,088.68, 19,706.98 and 11,538.60 is: 17,373.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,088.68 : 19,706.98 = 11,538.60 : x
  2. Step 2: Convert to fraction form
    13,088.68/19,706.98 = 11,538.60/x
  3. Step 3: Cross multiply
    13,088.68x = 19,706.98 × 11,538.60
  4. Step 4: Simplify right side
    13,088.68x = 227,390,959.43
  5. Step 5: Solve for x
    x = 227,390,959.43/13,088.68
  6. Step 6: Final answer
    x = 17,373.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.