Home / 10,345.12-14,290.88-8,017.28

Finding the Fourth Proportional to 10,345.12, 14,290.88 and 8,017.28

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Solution

The fourth proportional to 10,345.12, 14,290.88 and 8,017.28 is: 11,075.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,345.12 : 14,290.88 = 8,017.28 : x
  2. Step 2: Convert to fraction form
    10,345.12/14,290.88 = 8,017.28/x
  3. Step 3: Cross multiply
    10,345.12x = 14,290.88 × 8,017.28
  4. Step 4: Simplify right side
    10,345.12x = 114,573,986.41
  5. Step 5: Solve for x
    x = 114,573,986.41/10,345.12
  6. Step 6: Final answer
    x = 11,075.17

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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.