Home / 15,257.24-21,038.34-13,250.08

Finding the Fourth Proportional to 15,257.24, 21,038.34 and 13,250.08

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Solution

The fourth proportional to 15,257.24, 21,038.34 and 13,250.08 is: 18,270.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,257.24 : 21,038.34 = 13,250.08 : x
  2. Step 2: Convert to fraction form
    15,257.24/21,038.34 = 13,250.08/x
  3. Step 3: Cross multiply
    15,257.24x = 21,038.34 × 13,250.08
  4. Step 4: Simplify right side
    15,257.24x = 278,759,688.07
  5. Step 5: Solve for x
    x = 278,759,688.07/15,257.24
  6. Step 6: Final answer
    x = 18,270.65

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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.