Home / 10,346.36-14,290.80-7,509.20

Finding the Fourth Proportional to 10,346.36, 14,290.80 and 7,509.20

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Solution

The fourth proportional to 10,346.36, 14,290.80 and 7,509.20 is: 10,372.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,346.36 : 14,290.80 = 7,509.20 : x
  2. Step 2: Convert to fraction form
    10,346.36/14,290.80 = 7,509.20/x
  3. Step 3: Cross multiply
    10,346.36x = 14,290.80 × 7,509.20
  4. Step 4: Simplify right side
    10,346.36x = 107,312,475.36
  5. Step 5: Solve for x
    x = 107,312,475.36/10,346.36
  6. Step 6: Final answer
    x = 10,372.00

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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.