Home / 14,985.29-20,678.27-8,271.20

Finding the Fourth Proportional to 14,985.29, 20,678.27 and 8,271.20

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Solution

The fourth proportional to 14,985.29, 20,678.27 and 8,271.20 is: 11,413.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,985.29 : 20,678.27 = 8,271.20 : x
  2. Step 2: Convert to fraction form
    14,985.29/20,678.27 = 8,271.20/x
  3. Step 3: Cross multiply
    14,985.29x = 20,678.27 × 8,271.20
  4. Step 4: Simplify right side
    14,985.29x = 171,033,962.08
  5. Step 5: Solve for x
    x = 171,033,962.08/14,985.29
  6. Step 6: Final answer
    x = 11,413.46

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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.