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Finding the Fourth Proportional to 6,430.10, 9,015.10 and 6,430.10

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Solution

The fourth proportional to 6,430.10, 9,015.10 and 6,430.10 is: 9,015.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,430.10 : 9,015.10 = 6,430.10 : x
  2. Step 2: Convert to fraction form
    6,430.10/9,015.10 = 6,430.10/x
  3. Step 3: Cross multiply
    6,430.10x = 9,015.10 × 6,430.10
  4. Step 4: Simplify right side
    6,430.10x = 57,967,994.51
  5. Step 5: Solve for x
    x = 57,967,994.51/6,430.10
  6. Step 6: Final answer
    x = 9,015.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.