Home / 15,555.93-21,467.48-9,271.95

Finding the Fourth Proportional to 15,555.93, 21,467.48 and 9,271.95

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Solution

The fourth proportional to 15,555.93, 21,467.48 and 9,271.95 is: 12,795.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,555.93 : 21,467.48 = 9,271.95 : x
  2. Step 2: Convert to fraction form
    15,555.93/21,467.48 = 9,271.95/x
  3. Step 3: Cross multiply
    15,555.93x = 21,467.48 × 9,271.95
  4. Step 4: Simplify right side
    15,555.93x = 199,045,354.83
  5. Step 5: Solve for x
    x = 199,045,354.83/15,555.93
  6. Step 6: Final answer
    x = 12,795.46

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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.