Home / 15,526.07-21,440.21-9,862.65

Finding the Fourth Proportional to 15,526.07, 21,440.21 and 9,862.65

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Solution

The fourth proportional to 15,526.07, 21,440.21 and 9,862.65 is: 13,619.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,526.07 : 21,440.21 = 9,862.65 : x
  2. Step 2: Convert to fraction form
    15,526.07/21,440.21 = 9,862.65/x
  3. Step 3: Cross multiply
    15,526.07x = 21,440.21 × 9,862.65
  4. Step 4: Simplify right side
    15,526.07x = 211,457,287.16
  5. Step 5: Solve for x
    x = 211,457,287.16/15,526.07
  6. Step 6: Final answer
    x = 13,619.50

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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.