Home / 15,848.46-21,870.02-9,475.20

Finding the Fourth Proportional to 15,848.46, 21,870.02 and 9,475.20

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Solution

The fourth proportional to 15,848.46, 21,870.02 and 9,475.20 is: 13,075.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,848.46 : 21,870.02 = 9,475.20 : x
  2. Step 2: Convert to fraction form
    15,848.46/21,870.02 = 9,475.20/x
  3. Step 3: Cross multiply
    15,848.46x = 21,870.02 × 9,475.20
  4. Step 4: Simplify right side
    15,848.46x = 207,222,813.50
  5. Step 5: Solve for x
    x = 207,222,813.50/15,848.46
  6. Step 6: Final answer
    x = 13,075.26

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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.