Home / 15,246.36-21,038.54-8,531.06

Finding the Fourth Proportional to 15,246.36, 21,038.54 and 8,531.06

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Solution

The fourth proportional to 15,246.36, 21,038.54 and 8,531.06 is: 11,772.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,246.36 : 21,038.54 = 8,531.06 : x
  2. Step 2: Convert to fraction form
    15,246.36/21,038.54 = 8,531.06/x
  3. Step 3: Cross multiply
    15,246.36x = 21,038.54 × 8,531.06
  4. Step 4: Simplify right side
    15,246.36x = 179,480,899.20
  5. Step 5: Solve for x
    x = 179,480,899.20/15,246.36
  6. Step 6: Final answer
    x = 11,772.05

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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.