Home / 15,573.32-21,491.18-8,860.25

Finding the Fourth Proportional to 15,573.32, 21,491.18 and 8,860.25

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Solution

The fourth proportional to 15,573.32, 21,491.18 and 8,860.25 is: 12,227.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,573.32 : 21,491.18 = 8,860.25 : x
  2. Step 2: Convert to fraction form
    15,573.32/21,491.18 = 8,860.25/x
  3. Step 3: Cross multiply
    15,573.32x = 21,491.18 × 8,860.25
  4. Step 4: Simplify right side
    15,573.32x = 190,417,075.84
  5. Step 5: Solve for x
    x = 190,417,075.84/15,573.32
  6. Step 6: Final answer
    x = 12,227.14

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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.