Home / 15,531.63-23,307.47-7,215.57

Finding the Fourth Proportional to 15,531.63, 23,307.47 and 7,215.57

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Solution

The fourth proportional to 15,531.63, 23,307.47 and 7,215.57 is: 10,828.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,531.63 : 23,307.47 = 7,215.57 : x
  2. Step 2: Convert to fraction form
    15,531.63/23,307.47 = 7,215.57/x
  3. Step 3: Cross multiply
    15,531.63x = 23,307.47 × 7,215.57
  4. Step 4: Simplify right side
    15,531.63x = 168,176,645.23
  5. Step 5: Solve for x
    x = 168,176,645.23/15,531.63
  6. Step 6: Final answer
    x = 10,828.01

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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.