Home / 19,693.36-29,531.40-7,210.15

Finding the Fourth Proportional to 19,693.36, 29,531.40 and 7,210.15

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Solution

The fourth proportional to 19,693.36, 29,531.40 and 7,210.15 is: 10,812.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,693.36 : 29,531.40 = 7,210.15 : x
  2. Step 2: Convert to fraction form
    19,693.36/29,531.40 = 7,210.15/x
  3. Step 3: Cross multiply
    19,693.36x = 29,531.40 × 7,210.15
  4. Step 4: Simplify right side
    19,693.36x = 212,925,823.71
  5. Step 5: Solve for x
    x = 212,925,823.71/19,693.36
  6. Step 6: Final answer
    x = 10,812.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.