Home / 10,904.99-15,054.48-6,430.19

Finding the Fourth Proportional to 10,904.99, 15,054.48 and 6,430.19

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Solution

The fourth proportional to 10,904.99, 15,054.48 and 6,430.19 is: 8,876.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,904.99 : 15,054.48 = 6,430.19 : x
  2. Step 2: Convert to fraction form
    10,904.99/15,054.48 = 6,430.19/x
  3. Step 3: Cross multiply
    10,904.99x = 15,054.48 × 6,430.19
  4. Step 4: Simplify right side
    10,904.99x = 96,803,091.48
  5. Step 5: Solve for x
    x = 96,803,091.48/10,904.99
  6. Step 6: Final answer
    x = 8,876.96

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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.