Home / 19,355.40-26,712.54-10,971

Finding the Fourth Proportional to 19,355.40, 26,712.54 and 10,971

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Solution

The fourth proportional to 19,355.40, 26,712.54 and 10,971 is: 15,141.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,355.40 : 26,712.54 = 10,971 : x
  2. Step 2: Convert to fraction form
    19,355.40/26,712.54 = 10,971/x
  3. Step 3: Cross multiply
    19,355.40x = 26,712.54 × 10,971
  4. Step 4: Simplify right side
    19,355.40x = 293,063,276.34
  5. Step 5: Solve for x
    x = 293,063,276.34/19,355.40
  6. Step 6: Final answer
    x = 15,141.16

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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.