Home / 14,303.64-21,459.87-6,412.80

Finding the Fourth Proportional to 14,303.64, 21,459.87 and 6,412.80

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Solution

The fourth proportional to 14,303.64, 21,459.87 and 6,412.80 is: 9,621.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,303.64 : 21,459.87 = 6,412.80 : x
  2. Step 2: Convert to fraction form
    14,303.64/21,459.87 = 6,412.80/x
  3. Step 3: Cross multiply
    14,303.64x = 21,459.87 × 6,412.80
  4. Step 4: Simplify right side
    14,303.64x = 137,617,854.34
  5. Step 5: Solve for x
    x = 137,617,854.34/14,303.64
  6. Step 6: Final answer
    x = 9,621.18

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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.