Home / 10,987.18-16,477.58-6,306.40

Finding the Fourth Proportional to 10,987.18, 16,477.58 and 6,306.40

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Solution

The fourth proportional to 10,987.18, 16,477.58 and 6,306.40 is: 9,457.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,987.18 : 16,477.58 = 6,306.40 : x
  2. Step 2: Convert to fraction form
    10,987.18/16,477.58 = 6,306.40/x
  3. Step 3: Cross multiply
    10,987.18x = 16,477.58 × 6,306.40
  4. Step 4: Simplify right side
    10,987.18x = 103,914,210.51
  5. Step 5: Solve for x
    x = 103,914,210.51/10,987.18
  6. Step 6: Final answer
    x = 9,457.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.